These battery holders are made of unbreakable plastic. Curved tabs prevent the battery from falling out when the holder is inverted. Additional Info: These battery holders are made of unbreakable plastic. Curved tabs prevent the battery from falling out when the holder is inverted. Package Size(L x W x H): 2.25 X 0.6 X 0.6 (IN) Categories: Electricity, Battery Holder HTS Code: 8536.90.8085 UNSPSC: 2.61117e+007 Country Of Origin: CHINA